Cellar-drain and backwater-trap.



F. A. MGLOUGHLIN. GELLAR DRAIN AND BAGKWATER TRAP, APPLICATION FILED AUG.27,1908.

Patented July 11, 1911.

llillllmln slum?) O eeeaeeee@ @CK3000-OOO@ UNITED STATES FRANcIs A. MeLoUGHLIN, or PEonrA, ILLINoIs.

GELLAR-DRAIN AND' BACKWTER-TRAP.

Specification of Letters Patent.

Patenten July-11, 1911.

Application led August 27, 1908. Serial No. 450,477.

To all whom 'it may concern:

Be it known that I, FRANCIs A. MCLOUGH'.

LIN, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and usiful Improvements in Cellar-Drains and Backwater-Traps; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

`This invention has reference to certain new and useful improvements in traps and relates particularlyto a sewer-trap or that class of trap which is used for connecting cellar-drains with a sewer, and which may be placed in any situation where water is to be drained ol'l and provided with means for automatically cutting olf the escape f sewergas or the backing up of water through said trap.

A further object of the invention vis to construct a trap wherein the liability of the trap becoming airbound is entirely obviated.

A further object of the invention is to construct a trap communicating with an outlet pipe, preferably formed integral therewith and with a clean-out opening forming a connection between the sink of the trap and said pipe, and connected with the base of the trap a valved pipe leadingv to a water supply under pressure.

For a further and full description of the,

invention herein and the merits thereof and also to acquire a. knowledge of the details of construction of the means for etectingtlie result2 reference is had to the following description and drawings hereto attached.

Vliile the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a greatly reduced vertical longitudinal e anal view cf the trap and compone 4s thereof, showing the trap sub-stai s it appears when installed and Fig. Q is a plan view of i :i portion of the perforated sink cnt away to disclose to portion leading from the base of the trap are preferably :formedr integral; however, under certain conditions it may be founddesirable to make these portions of the trap separate and join the same by suitable means.

The trap comprises the receiving or sink portion l, which may be of rectangular or other'suitable form, and which preferably tapers downwardly, as shown; the bottom of the sink portion has the circular opening 2 and depending from said sink portion is a bowl shaped trap portion 3, its wall formed integrally with and depending from the bottom of the sink portion, with an opening et in Athe bottom of the trap portion which communicates with' a chamber 5 there beneath, said 'chamber extending. upwardly and diagonally and partially about the trap portion 3 and opens into or communicates with a laterally extended pipe portion or neck 6, with which other sections of pipe may be joined, and has an open end to empty into any such pipe sections that may be connected thereto. The center of the pipe or neck portion 6, aforesaid, passes preferably through the sink portion 3 of the trap, at a point removed a suitable distance above the bottom of said sink portion, and in the wall of the sink portion, which, it may be said forms the inner end'wall of the pipe a a threaded opening 7 is provided, i'nto which may be screwed, aplug 8, operated from within the sink portion, as is apparent from an examination of the figures. This openv ing 7, with its plug 8 forms a clean out, whereby access may be had to the pipe 6 through the sink portion 1, upon the relnioval of the strainer or perforated cover ing plate 9, for the sink.

The plate 9 rests upon lugs 10 formed integral with and projecting inwardly from the inner side of the side walls of the sink portion 3, and said plate 9 is substantially saucer shaped as shown, and provided with plurality of perforatic-ns 11 arranged in two sets; one set disposed centrally of the plate and the other set includingquite a number of perforations and placedV all around the outer portion of the said. plate.

The circular opening 2 in the bottom of the sink portion l is of a size to admit thepassage therethrough of a suitable sized ll-valve 'if/3 into the trap 3 andfsaid balle, as will be und toad, is vpreferably Vf 3' i of such a niateriahso as tube buoyant and of suiiicient strength to resist the pressure of back water, should there be any. A valve seat is vprovided for the opening 2 in the provision of the annular shaped gasket 13, which said gasket may be suitably held in place, although I prefer to secure it in place:

by means of the short tubular member 111 extending up from the bottom of the sink portion 3 and secured thereto by an annular flange 15 which is bolted or otherwise secured in place and restin on the gasket 13 in the manner shown. This member 14C eX- tends approximately half way up into the sink portion 3 and its upper portion is surrounded by a depending annular flange 16 formed integral with the plate 9, with the lower edge of said flange below the upper edge of the member 14. a sufficient distance to cause any water entering the sink through the perforations 11 in the outer portion of the plate 9, to first descend and then to rise before -entering the member 14 and thence into the trap 3. In this way, a large portion of the sediment passing with the water into the sink -portion 3, will lodge itself on the bottom of the sink around the memberlll. The flange 16 depends from the plate 9 preferably intermediate the two sets of perforations 11, so that one set surrounds said flange and the other set communicates with the interior of the sink portion 3 above the member 14. With such a construction and arrangement of parts in the sink and perforations in the plate 9, it will be observed that the danger of the trap becoming air bound is entirely obviated, as the centrally disposed set of openings 11 will prevent such a state of affairs and form a passage for the water directly into the member 14 and from thence directly into the trap 3.

rlhe opening l in the bottom of the-trap 3 has its wall tapered to form a valve seat for the ball valve 12, which will seat itself in the manner shown in dotted lines in Fig. 1, if for any reason the water should all be drawn from the body of the trap and thereby prevent sewer-gas from escaping into the building in which the trap is located. @n the other hand, in the event of any overflow or rush of back-water in the sewer, ,the ball valve 12 is raised by the pressi re of the wats itself firmly agai t the gasket and the flooding of the water through the pipe 17,

aereas the trap and mto the cellar is thereby prevented.

rllhe chamber 5 has its lowermost point directly beneath the trap portion 3 andconnected therewith and preferably extending at right angles therefrom is a water feed pipe or lateral 17 which extends upwardly at a suitable point, preferably adjacent a side wall and connects witha city water supply or some other supply under pressure. At a suitable point on the pipe 17, preferably at some point within reach of an operator and above the floor line, is provided a suitable valve 18 to control the flow of `water to the trap, as the pipe merely as a clean out in case the chamber 5 or the pipe 6 should become clogged from any cause whatever, when the valve 18 may be turned on and the lower portion of the trap and pipe 6 flushed, through the action of the water passing into the trap through and out through the pipe 6. When such operation takes place the ball valve will operate in the same manner to seat itself on the valve seat formed by the gasket 13, as it does in the event of an overflow or rush of back-water.

Having thus fully described my invention, what l claim and desire to secure by Letters Patent of the United States, is

A device of the class described comprising a sink portion, a. trap basin integral therewith and having inlet communications4 therewith, a removable gasket surrounding said inlet, a flanged tubular member superimposed upon said gasket, extending up into the sink and affixed to the bottom thereof, a cover for the sink having a series of openings disposed centrally thereof and a series around the outside thereof, an annular flange depending from the cover between said two series of openings and encircling said tubular member, a discharge pipe integral with both the trap basin and the sink, and having inlet communications with each, and removable means for-stopping said inlets.

ln testimony whereof l affix my signature, in presence of two witnesses.

iFRANClS ik. lVlloLUGrHLlfhl. itnesses Lamm lil Gnareoon, @nas "t/. La Porra 17 is employed f 

